Title :
X-ray movies of ultrafast atomic motion
Author :
Barty, C.P.J. ; Siders, Craig W. ; Cavalleri, Andrea ; Sokolowski-Tinten, Klaus ; Guo, Ting ; Töth, Csaba ; Jimenez, Ralph ; Rose-Petruck, Christoph ; Von der Linde, Dietrich ; Wilson, Kent R.
Author_Institution :
California Univ., San Diego, La Jolla, CA, USA
Abstract :
Using ultrafast-X-ray, line radiation generated with a 20-fs multi-terawatt laser system, we are able to observe femtosecond-laser-induced lattice dynamics in bulk semiconductors with milliangstrom spatial and picosecond temporal resolution via time resolved X-ray diffraction. Coherent phonon generation and propagation, ultrafast melting of thin films and buried interface lattice coupling have been observed
Keywords :
X-ray applications; X-ray diffraction; high-speed optical techniques; lattice dynamics; 20 fs; X-ray movies; bulk semiconductors; buried interface lattice coupling; coherent phonon generation generation; femtosecond-laser-induced lattice dynamics; fs multi-terawatt laser system; milliangstrom spatial resolution; picosecond temporal resolution; thin films; time resolved X-ray diffraction; ultrafast atomic motion; ultrafast melting; ultrafast-X-ray line radiation generation; Atomic beams; Atomic measurements; Lattices; Motion pictures; Optical propagation; Phonons; Semiconductor lasers; Spatial resolution; X-ray diffraction; X-ray lasers;
Conference_Titel :
LEOS '99. IEEE Lasers and Electro-Optics Society 1999 12th Annual Meeting
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5634-9
DOI :
10.1109/LEOS.1999.813502
